public class Node <T> {
    
    public T data;
    public Node <T> next;

    //有参构造
    public Node(T values,Node <T> next) {
        this.data = values;
        this.next = next;
    }
    //无参构造
    public Node(){
        this(null,null);
    }
    public Node(int i, Object next2) {
    }

}
